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H7290

Sigma-Aldrich

Anti-HtrA2 antibody produced in rabbit

enhanced validation

~1.5 mg/mL, affinity isolated antibody, buffered aqueous solution

Synonym(s):

Anti-High Temperature Requirement protein A2, Anti-HtrA serine peptidase 2, Anti-Omi, Anti-PARK13, Anti-PRSS25, Anti-Protease, Serine, 25

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About This Item

UNSPSC Code:
12352203

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen ~36 kDa (also 50 kDa band corresponding to HtrA2 precursor)

species reactivity

human, rat

packaging

antibody small pack of 25 μL

enhanced validation

recombinant expression
Learn more about Antibody Enhanced Validation

concentration

~1.5 mg/mL

technique(s)

western blot: 2-4 μg/mL using rat liver microsomal fraction and HEK-293 cells expressing human HTRA2

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... HTRA2(27429)
rat ... Htra2(297376)

General description

High-temperature requirement protein A2 (HtrA2) belongs to the HtrA family of serine proteases. This protein is located in the mitochondria and is made up of N-terminal mitochondrial localization sequence (MLS), an inhibitor of apoptosis protein (IAP) binding domain (IBM), a single C-terminal PDZ domain that mediates protein-protein interaction, and a conserved catalytic domain of serine proteases. The HTRA2 gene is located on the human chromosome at 2p13.1.

Specificity

Anti-HtrA2 specifically recognizes human and rat HtrA2.

Application

Anti-HtrA2 antibody produced in rabbit may be used in immunoblotting.

Biochem/physiol Actions

High-temperature requirement A2 (HtrA2) exhibits endoproteolytic activity by cleaving misfolded proteins and other cellular proteins. This protein possesses protease activity, which is required for mitochondrial homeostasis. HtrA2 is released from the mitochondria as a mature form in response to apoptotic stimuli and is involved in regulating apoptosis through multiple pathways, including caspase-dependent and caspase-independent cell death. Mature HtrA2 promotes cytochrome c-dependent caspase activation by neutralizing inhibitors of apoptosis proteins (IAPs). Mutations that inactivate HtrA2 are associated with neurodegenerative diseases such as Parkinson′s disease and Alzheimer′s disease.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.

Storage and Stability

For continuous use, store at 2–8 °C for up to one month. For extended storage, freeze in working aliquots at –20 °C. Repeated freezing and thawing, or storage in “frost-free” freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.

Disclaimer

Unless otherwise stated in our catalog, our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Autocatalytic processing of HtrA2/Omi is essential for induction of caspase-dependent cell death through antagonizing XIAP
Seong Y M, et al.
The Journal of Biological Chemistry, 279(36), 37588-37596 (2004)
Yubo Yan et al.
Stem cell research, 47, 101905-101905 (2020-07-21)
Variations in PRKN or HTRA2 are associated with Parkinson's disease. We generated a human induced pluripotent stem cell (iPSC) line CIBi007-A from a patient with young-onset Parkinson's disease (YOPD) who carried variants in PRKN and HTRA2. The generated iPSCs resembled
Generation of a human iPSC line CIBi007-A from a patient with young-onset Parkinson?s disease carrying variants in PRKN and HTRA2
Yan Y, et al.
Stem Cell Research, 47, 101905-101905 (2020)
The mitochondrial serine protease HtrA2/Omi: an overview
Walle L V, et al.
Cell Death and Differentiation, 15(3), 453-460 (2008)

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